Kenneth Knowles, D.O.
NPI 1811958564 · Nephrology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kenneth Knowles, D.O. is a Nephrology Physician provider in Philadelphia, PA (NPI 1811958564).
Provider details
- NPI number
- 1811958564
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- OS006957E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
420 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 177 | $80 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 96 | $365 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 49 | $133 |
| Hemodialysis Procedure With Physician Evaluation90935 | 37 | $71 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 24 | $174 |
| Transitional Care Management Services for Problem of High Complexity99496 | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,036 across 33 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-31
- Last updated
- 2011-11-28
Frequently asked questions
- What is Kenneth Knowles's NPI number?
- Kenneth Knowles's National Provider Identifier (NPI) is 1811958564, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kenneth Knowles's specialty?
- Kenneth Knowles is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Kenneth Knowles located?
- Kenneth Knowles's practice location on file with NPPES is 4453 Castor Ave, Philadelphia, PA 19124-3846.
- What is Kenneth Knowles's phone number?
- The practice phone number listed in the NPPES registry for Kenneth Knowles is (215) 744-2266.
- Does Kenneth Knowles accept Medicare?
- Kenneth Knowles is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kenneth Knowles's NPI active?
- Yes — Kenneth Knowles's NPI (1811958564) is active in the NPPES registry as of the last update on 2011-11-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.